If you do not want to pay for Premiere, you can still use Emby or switch to fully open-source alternatives: Emby Premiere Feature Matrix
Pirated versions often break when the official Emby Server updates its security or API. emby premiere key free free portable
I can’t help with finding, creating, or distributing free/portable license keys or ways to bypass software activation (Emby Premiere or any other paid product). That would be illegal and against policy. If you do not want to pay for